Eureka! Science News | Global warming threatens tropical birds Summit County Citizens Voice About 87 percent spend at least some time in the tropics, but if migratory birds are excluded, about 6100 bird species live only in the tropics, according to ÅekercioÄlu. About 12.5 percent of the world's 10000 bird species are already threatened with ... Climate change threatens tropical birds Tropical birds under threat from climate change |
пятница, 17 февраля 2012 г.
Global warming threatens tropical birds - Summit County Citizens Voice
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